Spatio-Temporal Concentrations of Toxic Metals in Microplastics of
River Sediments, South-South, Nigeria

Isaac U. Isaac; Jack D. Nwineewii

doi:10.56201/ijccp.v10.no3.2024.pg19.28

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Spatio-Temporal Concentrations of Toxic Metals in Microplastics of River Sediments, South-South, Nigeria

Isaac U. Isaac and Jack D. Nwineewii

Abstract

The accumulation of toxic metals on microplastics in river sediments poses significant risks to aquatic ecosystems and human health. In this study, heavy metals (Cd, Cu, Cr, Fe, Mn, Ni, Pb, and Hg) were detected in partial acid digests of microplastic in sediment (MCPS) in the study sites using the GBC 908PBMT model Flame Atomic Absorption Spectrophotometer (FAAS). The spatial distribution of metals in MCPS investigated at Woji, Okujagu and Elelenwo rivers and statistically tested by a one-way analysis of variance (ANOVA) and Principal Component Analysis (PCA) biplot was employed for describing the study locations, possible associations with metals in sediments (MCPS) and study sites using PAST Statistics 1.32. The results showed that the mean concentration of Cd was higher in dry season than in wet season, and Pb was reasonably present during dry season across the sites. Moreover, Cu and Ni were found to be from a common source in the wet and dry seasons. It is recommended that periodic but consistent monitoring of the water bodies in the study area should be conducted in order to ascertain present state of the water and subsequent ameliorative measures taken to arrest potential health and ecological risk.

Keywords

microplasticstoxic metalssedimentsperiodic monitoring

References

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Spatio-Temporal Concentrations of Toxic Metals in Microplastics of River Sediments, South-South, Nigeria

Abstract

Keywords

References

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